web/web_ir_actions_act_window_page/demo/demo_action.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>

    <record model="ir.actions.server" id="demo_pager_previous">
        <field name="name">Previous partner</field>
        <field name="model_id" ref="base.model_res_partner"/>
        <field name="code">action = {"type": "ir_actions_act_window_page_prev"}</field>
    </record>

    <record model="ir.actions.server" id="demo_pager_next">
        <field name="name">Next partner</field>
        <field name="model_id" ref="base.model_res_partner"/>
        <field name="code">action = {"type": "ir_actions_act_window_page_next"}</field>
    </record>

    <!-- Adding some redundant buttons to the partner form so that this module can be tested on runbot.
    You might be more interested in returning this action type from a method in your code. -->
    <record id="view_partner_form" model="ir.ui.view">
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form"/>
        <field name="arch" type="xml">
            <div class="oe_button_box" position="inside">
                <button name="%(web_ir_actions_act_window_page.demo_pager_previous)d"
                        type="action" string="Previous Partner"
                        icon="fa-arrow-left"
                        class="oe_stat_button"/>
                <button name="%(web_ir_actions_act_window_page.demo_pager_next)d"
                        type="action" string="Next Partner"
                        icon="fa-arrow-right"
                        class="oe_stat_button"/>
            </div>
        </field>
    </record>

</odoo>